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-(No Model.) 2 SheetsSheet 1.

N. H. TILDEN.

BURL STEMMING AND SORTINGMAGHINE. No. 536,972. Patented Apr. 2, 1895.

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(No Model.) 2 SheetsSheet 2.

N, H. TILDEN. 'HURL STEMMING AND SORTING MACHINE. No. 536,972; PatentedApr. 2, 1895.

NrTE STATES A-TENT NEWTON H. TILDEN, OF DES MOINES, IOWA, ASSIGNOR TO W.S. HANCOCK, OF CHICAGO, ILLINOIS, AND THE A. O. MOUNT BROOM COMPANY, OFDES MOINES, IOWA.

HURL STEMMING AND SORTING MACHINE.

SPECIFICATION forming part Of Letters Patent NO. 536,972, dated April 2,1895. Applicatioii filed June 26, 1893- Serial No.478,904. (No model.)

To all whom it may concern: f

Be it knownthat I, NEWTON H. TILDEN, a citizen of the United StatesofAmerica, residing at Des Moines, in the county of Polk and State ofIowa, have invented an Improved Hurl Stemming and Sorting Machine, ofwhich the following is a specification.

My object is to produce a cheap, simple and durable machine, adapted toseparate the hurl I0 and stems of broom corn.

To this end my invention consists in certain details in theconstruction, arrangement and combination of the various parts of thedevice, as hereinafter set forth, pointed out in my claims andillustrated in the accompanying drawings, in which- Figure l is avertical sectional view through the line Z, Z, of Fig. 2. Fig. 2 is avertical sectional view through the line X, X, of Fig. 1.

2 0 Fig. 3 is an enlarged detail view, of a modified form of device forvibrating the frame. Fig. 4 is a perspective view of the separator andreceptacle for holding the hurl. Fig. 5 is a top View of the same. Fig.6 is a perspective 2 5 View of the lower portion of the machine framewith the separator removed.

Referring to the accompanying drawings,

the reference letter A is used to designate a supporting frame, composedof two uprights with a cross piece at their tops, mounted on the base AB designates a second frame composed of two uprights and a cross pieceat their tops, adapted to be placed on the inside of the 5 frame A.

B are clips secured to the frame and extending inwardly beyond the edgesof the uprights thereof to allow the frame B to slidevertically'relative to the frame A. Fixed to the 40 lower end of thissliding frame, is a platform 13? having the raised side pieces Bthereon, for purposes hereinafter set forth.

0 designates a cushion, preferably made of rubber fixed to the base Aand adapted to be engaged by across piece attached to the bottom of theplatform B to prevent noise and the wearing away of the contactingsurfaces.

D designates a rectangular frame, having a number of partitions thereindividing it into compartments open at their tops and bottoms,

and D is a screen stretched over the top of this frame and having itsmeshes of such a size as to allow the hurl to pass therethrough andretain the stems and coarser parts. This. frame is adapted to be placedupon the platform B and is of a size slightly smaller than saidplatform, so that it may freely slide thereupon, in a horizontal planein any direction. F designates a frame similar to the frame D, andpermanently fixed between the uprights of the frame B, a slight distanceabove the screen D for the purpose of receiving the hurl and holding itin avertical position upon the screen. I have provided the followingmechanism for vertically reciprocating the said sliding frameas'required to cause the hurl to be passed through the screen: Hdesignates a shaft rotatably mounted in the frame A near its top. H is aroller on said shaft and provided with the projections H on its oppositesides adapted to he brought into engagement with the cross piece H ofthe frame B, and when rotated to elevate the said frame 15.

J designates a belt on a pulley fixed to the outer end of this shaft,whereby the shaft may be operated.

K designates a weighted lever, swivel'ed to the top of the frame A andconnected with the frame B by means of a rope K so that the frame B isnormally held elevated and its cross piece H out of engagement with thepro jections on the roller H K is a hook se-. cured to the frame A toengage the said lever and hold it downwardly and thereby release 8 5 theframe B, so that the projections on the roller will engage the crosspiece of the frame and elevate it.

In the modification shown in Fig. 3 a cam N is shown, fixed to the shaftH and'having four projections N? to engage the cross piece of the frameB and operate the said frame at a greater rate of speed with the samerate of rotation of said shaft.

In practical use, the cut broom-corn or hurl 5 is placed in the upperframe in a vertical position with their ends resting upon the screen.The cross pieces or partitions in said upper frame aid in keeping thehurl in a vertical position while itis being filled or when the frame100 is not full. The lower frame, by being loosely placed upon thebottom of the vibrating frame, is moved laterally upon the said bottomrelative to the upper frame by the vibration of the frame so that thehurl is shaken through the screen and not caught upon the meshes of thescreen or by the cross pieces. Power may be applied to the shaft Heither by a mechanical motor or manually, and as the frames are vibratedthe parts that are small enough will pass through the screen into thelower frame and the larger parts be retained in the upper frame.

Having thus described my invention, what I claim as new therein, anddesire to secure by Letters Patent of the United States therefor,is-- 1. In a device for grading broom-corn stems, the combination of avessel, the upper portion divided into compartments, such upper andlower compartments separated by a suitable sieve such device adapted tobe elevated to a desired height and then dropped, so that the underportion of the vessel by such fall is brought in contact with a fixedbody for the purposes stated and substantially as described.

2. A hurl stemming and sorting machine, comprising an upright frame asecond frame within the first, capable of a vertical movement relativethereto, a horizontal frame having a number of vertical cross pieces orpartitions therein for the purposes stated, fixed to the lower endportion of the sliding frame,

a screen below said horizontal. frame and means for vibrating thesliding frame, substantially as and for the purposes stated.

3. A hurl stemming and sorting machine, comprising an upright frame, asecond frame capable of a vertical movement relative to the first, abottom to said sliding frame, a horizontal frame having verticalpartitions, fixed to said sliding frame near its bottom, a secondhorizontal frame loosely placed upon said bottom, to move horizontallythereon, a screen at the top of said movable frame, and means forvertically reciprocating said sliding frame, substantially as, and forthe purposes, stated.

4. A hurl stemming and sorting machine, comprising an-upright frame, asecond frame capable of a vertical movement relative to the first, abottom to said sliding frame, a horizontal frame having verticalpartitions fixed to said sliding frame near its bottom, a secondhorizontal frame loosely placed upon said bottom to move horizontallythereon, a screen at the top of said movable frame, and the mechanismshown and described for imparting a vertically reciprocating motion tosaid sliding frame, and the device shown for holding said frame out ofengagement with the vibrating mechanism, all arranged and combined,substantially in the manner set forth, for the purposes stated.

NEWTON I'l. TILDEN. lVitnesses:

G. E. BLACK, THOMAS G. ORWIG.

